Amine functional polymers containing acetal groups
US5086111A · kind A · utility
14Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 1990 |
| Grant date | Feb 4, 1992 |
| Priority date | — |
| Expiry date | May 17, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2800/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyvinylaminals, optionally as the formed copolymer with polyvinylhemiaminals, and polyvinylacetals are useful as flocculants and epoxy resin and polyurethane crosslinking agents and are provided by reacting a poly(vinylamine) or a copolymer containing vinyl alcohol and vinylamine units with a monoaldehyde. The aldehyde, such as butyraldehyde, can be introduced in the polymer acetalization as a liquid or gas, generally in a proportion of about 0.02 to 0.5 mol per mol of alcohol and amine units in the polymer chain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.